Combined Science GCSE

Reduction and oxidation

What Reduction and oxidation means in Combined Science GCSE, as defined for AQA.

Definition of Reduction and oxidation

Check what you remember

Read the wording for your board, then hide it and explain Reduction and oxidation in your own words. Rough notes are fine. This is a self-check, with no mark or grade.

Reference: AQA

At the cathode positive ions gain electrons and are reduced, while at the anode negative ions lose electrons and are oxidised.

AQA · Representation of reactions at electrodes as half equations (HT only) (study guide)

Topics that use Reduction and oxidation

Representation of reactions at electrodes as half equations (HT only) (AQA GCSE)

Related terms

Using Reduction and oxidation in the exam

Check the command word and mark scheme for your exact question. After comparing your explanation with the reference, use the term in an answer on the linked topic. This practice does not predict an exam mark.

Practise Combined Science questions

Create a free account to answer exam-style questions on this topic and get feedback on your answers.

Start free

A week of Premium from your first lesson · Then the free plan continues · No card, no charge

All Combined Science GCSE terms